BERLIN, Jan 29 (Reuters) - Germany's openly gay foreign minister has told Moscow's envoy to Berlin a Russian draft law banning "homosexual propaganda" contravenes human rights and could harm the country's ties with Europe, Spiegel online said on Tuesday. The German foreign ministry confirmed the meeting on Monday evening between Foreign Minister Guido Westerwelle and Russia's ambassador in Berlin, Vladimir Grinin, but declined to comment on what they discussed. Westerwelle had made clear that in Germany's view the law violated the European human rights convention, the report said.